petsc-3.9.4 2018-09-11
PCMGSetResidual
Sets the function to be used to calculate the residual on the lth level.
Synopsis
#include "petscksp.h"
PetscErrorCode PCMGSetResidual(PC pc,PetscInt l,PetscErrorCode (*residual)(Mat,Vec,Vec,Vec),Mat mat)
Logically Collective on PC and Mat
Input Parameters
| pc | - the multigrid context
|
| l | - the level (0 is coarsest) to supply
|
| residual | - function used to form residual, if none is provided the previously provide one is used, if no
previous one were provided then a default is used
|
| mat | - matrix associated with residual
|
Keywords
MG, set, multigrid, residual, level
See Also
PCMGResidualDefault()
Level
advanced
Location
src/ksp/pc/impls/mg/mgfunc.c
Index of all PCMG routines
Table of Contents for all manual pages
Index of all manual pages